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/* */
/* Centre for Speech Technology Research */
/* University of Edinburgh, UK */
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/* */
/* Author : Paul Taylor */
/* ------------------------------------------------------------------- */
/* EST_Date Class header file */
/* */
/*************************************************************************/
#ifndef __EST_FeatureData_H__
#define __EST_FeatureData_H__
#include "EST_Val.h"
#include "EST_TVector.h"
#include "EST_TList.h"
#include "EST_rw_status.h"
#include "EST_types.h"
#include "EST_Features.h"
typedef EST_TMatrix<EST_Val> EST_ValMatrix;
typedef EST_TVector<EST_Val> EST_ValVector;
/** A class for containing arbitrary multi-dimensional feature data.
A number of fields are defined in the EST_FeatureData class, each of
which represents a measurable quantity, such as height, age or
gender. Any number of fields can be defined and each field can take a
float, integer or string value. The class holds multiple instances of
field values, representing samples taken from a population.
Several statistical training, testing and analysis programs use
EST_FeatureData as input and output. Member functions exist for
comparing fields, extracting given named or numbered fields, can
converting appropriate fields to a EST_FMatrix.
*/
class EST_FeatureSample : public EST_ValVector {
private:
bool p_sub_fd;
void default_vals();
void free_internals();
void alloc_internals();
EST_Features *p_info;
EST_FeatureSample ©(const EST_FeatureSample &a);
public:
EST_FeatureSample();
EST_FeatureSample(const EST_FeatureSample &a);
/**@name Information functions */
//@{
/** set number of samples to be held in object and allocate
space for storing them */
/*
int num_fields() const {return info().num_fields();}
//@}
EST_Val &a(int field)
{return EST_ValVector::a(field);}
const EST_Val &a(int field) const
{return EST_ValVector::a(field);}
EST_Val &a(const EST_String &name)
{return EST_ValVector::a(info().field_index(name));}
const EST_Val &a(const EST_String &name) const
{return EST_ValVector::a(info().field_index(name));}
/// const element access operator
// const EST_Val &operator () (int sample, const EST_String &field);
/// non-const element access operator
EST_Val &operator () (const EST_String &field);
EST_Val &operator () (int field);
EST_FeatureSample &EST_FeatureSample::operator=
(const EST_FeatureSample &f);
friend ostream& operator << (ostream &st, const EST_FeatureSample &a);
//@}
*/
};
class EST_FeatureData{
private:
bool p_sub_fd;
void default_vals();
void free_internals();
void alloc_internals();
EST_FeatureData ©(const EST_FeatureData &a);
EST_Features info;
EST_ValMatrix fd;
public:
EST_FeatureData();
EST_FeatureData(const EST_FeatureData &a);
~EST_FeatureData();
EST_Features &ginfo() {return info;}
int num_samples() const;
int num_features() const;
void resize(int num_samples, int num_columns, bool preserve = 1);
void resize(int num_samples, EST_Features &f, bool preserve = 1);
void set_num_samples(int num_samples, bool preserve=1);
/* void extract_features(EST_FeatureData &f, const EST_StrList &fields) const;
void extract_features(EST_FeatureData &f, EST_IList &fields) const;
*/
EST_String type(const EST_String &feature_name);
EST_StrList values(const EST_String &feature_name);
void set_type(EST_String &feature_name, EST_String &type);
void set_values(EST_String &feature_name, EST_StrList &values);
int update_values(const EST_String &feature_name, int max);
int feature_position(const EST_String &feature_name);
EST_read_status load(const EST_String &name);
EST_write_status save(const EST_String &name,
const EST_String &EST_filetype = "") const;
EST_Val &a(int sample, int field);
EST_Val &a(int sample, const EST_String &name);
const EST_Val &a(int sample, int field) const;
const EST_Val &a(int sample, const EST_String &name) const;
friend ostream& operator << (ostream &st,const EST_FeatureData &a);
};
#endif /* __EST_FeatureData_H__ */
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